Как проверить, существует ли электронная почта в Python

## Regex ##

def isvalidEmail(email):
    pattern = "^\S+@\S+\.\S+$"
    objs = re.search(pattern, email)
    try:
        if objs.string == email:
            return True
    except:
        return False

VorNotV = isvalidEmail("email.address@example.com")
print(VorNotV)

####################

## Python Package ##

pip install validate-email-address

pip install py3dns

from validate_email_address import validate_email
isvalid=validate_email('email.address@example.com')
print(isvalid)

from validate_email_address import validate_email
isExists = validate_email('email.address@example.com', verify=True)
print(isExists)
JoeyTatu